4.4. SR 03-20-2017 - Laserfiche WebLink

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Table of Contents 1. Introduction........................................................................................................................... 1 A, Background...................................................................................................................1 B, Purpose.........................................................................................................................1 C- Report Organization.....................................................................................................2 2. Experimental Set-Up.............................................................................................................. 3 A. Pilot Study Equipment.................................................................................................. 3 B. Pilot Study Procedure and Schedule............................................................................ 7 3. Results and Discussion........................................................................................................... 8 A. Biological Treatment Performance of WWTF.............................................................. 8 B. Effects on the Disinfection System............................................................................... 9 C� WWTF Effluent Flow................................................................................................... 12 D. Bench -Scale Chlorination Test Results....................................................................... 13 E, Impact on the Biosolids.............................................................................................. 15 F. Notes and Visual Observations.................................................................................. 16 G. WWTF Capacity Evaluation........................................................................................ 16 The following Table 3.3 shows the available, and remaining capacity at the City's WWTF if the City accepts the leachate from Waste Management.................................................... 16 4. Conclusion...........................................................................................................................17 A. Summary of Results.................................................................................................... 17 B. Recommendations..................................................................................................... 17 Figures Figure 2.1: 21,000 gallons leachate storage tanks........................................................................... 3 Figure2.2: Primary Hose Pump....................................................................................................... 4 Figure 2.3: Sump Pump Located in 21,000 -gallon Storage Tank .................................................... 5 Figure 2.4: DR 5000 Spectrophotometer......................................................................................... 6 Figure 3.1: WWTF Effluent Results................................................................................................ 9 Figure 3.2: Long -Term Pilot Study Results................................................................................... 10 Figure 3.3: Elk River WWTF Flow............................................................................................... 13 Figure 3.4: Comparison of Color between Chlorine Doses........................................................... 15 Tables Table 3.1: Leachate Percentage of Total Flow............................................................................... 13 Table 3.2: Bench -Scale Effluent Chlorination Testing Results....................................................... 14 Appendix Appendix A: Raw Data Appendix B: Notes and Observation Prepared by: Bolton & Menk, Inc. Table of Contents Waste Management/Elk River Leachate Pilot Study I T21.109643